Clinical Performance and Accuracy of Healing Abutment With Scan Peg for Single Posterior Implant-supported Restorations
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 24
- 试验地点
- 2
- 主要终点
- Quality of proximal contacts of crowns fabricated by intraoral scanning of scan peg vs scan body
研究概览
简要总结
The aim of this randomized clinical trial is to evaluate the clinical performance through prosthodontic, periodontal and radiographic evaluation of single screw-retained implant-supported restorations fabricated by intraoral scanning of healing abutment with scan peg in comparison to scan body
详细描述
Evaluation of the clinical performance through prosthodontic, periodontal and radiographic evaluation of single screw-retained implant-supported restorations fabricated by intraoral scanning of healing abutment with scan peg in comparison to scan body
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Adult patients who are classified as ASA I or II physical status and require mandibular single implants (single missing mandibular posterior teeth) with:
- •Adequate interarch and mesiodistal space.
- •Proper bone height and width.
- •Adequate zone of keratinized tissue (at least 2 mm)
排除标准
- •Any systematic disease as uncontrolled diabetes mellitus or metabolic bone diseases
- •A history of head and neck radiation treatment.
- •Periodontal diseases.
- •Poor oral hygiene (Silness-Löe plaque index score 2 and 3) (32)
- •Parafunctional habits.
- •Malocclusion.
结局指标
主要结局
Quality of proximal contacts of crowns fabricated by intraoral scanning of scan peg vs scan body
时间窗: Through study completion, an average of 1 year
The proximal contacts will be evaluated with dental floss 1. Open: an open contact will be reported if there is no resistance against floss 2. Ideal: an ideal contact will be reported if there is some resistance to interproximal floss insertion. 3. Tight: a tight contact will be reported if it prevents the passage of floss through the proximal contact point. The percentage of proximal contacts will be calculated for each group at day of crown delivery, 3 months and 6 months later.
Scanning time (healing abutment-scan peg vs scan body)
时间窗: Through study completion, an average of 1 year
The scanning time by intraoral scanner will be recorded in both groups
Evaluation of occlusion by digital occlusal analyzer
时间窗: Through study completion, an average of 1 year
occlusal force of implant-supported restorations will be measured
Quality of occlusal contacts of crowns fabricated by intraoral scanning of scan peg vs scan body
时间窗: Through study completion, an average of 1 year
An evaluation of occlusion will be executed with 2 layers of shim stock of 12µ. 1. No adjustment: if the shimstock is held when the patient clenches and does not need any adjustment. 2. Mild adjustment: If the shim stock is held after simple closure, the occlusal contact will be reported as heavy and received mild chairside adjustment. 3. Major adjustment: If the crown is returned to the manufacturing technician, the adjustment is considered major. 4. Out of occlusion: If the shim stock passes without resistance after clenching, an open contact will be reported. The percentage of occlusal contacts will be calculated for each group at day of crown delivery, 3 months and 6 months later.
次要结局
未报告次要终点
研究者
Rania Elsayed
Assistant Lecturer, Department of Prosthodontics, Faculty of Dentistry
Alexandria University